How much snow can we expect from the next winter storm?

According to the National Weather Service, snow is falling in the mountains Tuesday morning and severe weather could occur in the Denver area overnight.

NWS forecasters said the second snowfall of the week could last into the weekend.

A winter weather advisory is in effect for mountain ranges above 9,000 feet and Jefferson, Douglas, Gilpin, Clear Creek, Park and Elbert counties from 8 p.m. Tuesday through 8 p.m. Wednesday, according to NWS forecasters.

According to the NWS snow forecast between 5 a.m. Tuesday and 5 a.m. Thursday:

• Denver and Arvada could see between 1 and 6 inches of snow;
• Aurora, Lakewood and Littleton could see between 2 and 7 inches of snow;
• Centennial, Golden and Highlands Ranch could see between 3 and 8 inches of snow;
• Parker could see up to 10 inches of snow.

Meteorologists said snow is expected to begin falling in the metropolitan area around 7 p.m. on Tuesday as temperatures fall below freezing.

Forecasters said higher elevations, particularly in Colorado's mountains, could see more than a foot of snow by Wednesday evening.

• Cordova Pass in the Spanish Peaks of southwest Colorado saw between 13 and 22 inches of snow;
• Wolf Creek Pass and La Manga Pass in the San Juan Mountains of southwest Colorado saw between 12 and 22 inches of snow;
• Cucharas Pass, North La Veta Pass and Pass Creek Pass in the Sangre de Cristo Mountains of central Colorado saw between 14 and 23 inches of snow;
• Rabbit Ears Pass, Rocky Mountain National Park and the
  The Medicine Bow Mountain Range saw between 3 and 10 inches of snow.

“The unsettled weather pattern will continue Thursday through Saturday with below-average temperatures and the possibility of snow,” NWS forecasters said in a Hazardous Weather Outlook. “There is still some uncertainty surrounding the details of the forecast for the later part of this week, so future forecasts may indicate more snow than currently anticipated.”